Side by side

Serica Ref. 5303 Diving ChronometervsNivada Grenchen Autochron

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Autochron
Nivada GrenchenAutochron
MSRP $2,495

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Autochron38mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Autochron42h
Water Resistance
Ref. 5303 Diving Chronometer300m
Autochron200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Autochron$2,495

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
39mm
38mm
Thickness
12.2mm
38mm
Lug-to-Lug
46.5mm
46mm
Finish
Brushed and polished
Brushed + Polished
Water Resistance
300m
200m
Caseback
Solid
316L Steel Silver Color Caseback

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Matt Blue Small texture +Super White Lum thick Printed 7506C Super Lum. Dots +White thick Printed logo
Indices
Applied
Baton

Movement

3 specs
Caliber
M100 COSC
ETA Valjoux 7750
Beat Rate
28,800 vph
28 vph
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$2,495

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

Nivada Grenchen Autochron

Owners praise the Nivada Grenchen Autochron's dial, with one owner calling it amazing. The Autochron Mechaquartz is noted for its squared profile and the comfort of its expansion bracelet on smaller wrists.

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